UIDevice * device=[UIDevice currentDevice];

    NSLog(@"name:%@",device.name);

    NSLog(@"model:%@",device.model);

    NSLog(@"localizedModel:%@",device.localizedModel);

    NSLog(@"systemName:%@",device.systemName);

    NSLog(@"systemVersion:%@",device.systemVersion);

    device.batteryMonitoringEnabled=YES;//显示电量

    NSLog(@"当前电量电池容量:%1.f%%",device.batteryLevel * 100);

    NSLog(@"model:%@",device.model);

    device.proximityMonitoringEnabled=YES;//接电话时屏幕关闭